init

app/static/scripts/downloadsTable.js

@@ -0,0 +1,40 @@
+function addItem(url) {
+	getFileSize(url, insertRow);
+}
+
+async function getFileSize(url, myCallback) {
+	// needs proper cors config
+    var http = new XMLHttpRequest();
+    http.open('HEAD', url, true); // true = Asynchronous
+    http.onreadystatechange = function() {
+        if (this.readyState == this.DONE) {
+            if (this.status === 200) {
+               myCallback(url,parseInt(this.getResponseHeader('content-length')));
+            }
+        }
+    };
+    http.send();
+}
+
+function insertRow(url, size) {
+	let table = document.getElementById("table");
+	var newRow = table.insertRow(table.length);
+
+	let suffixes = ["B", "KB", "MB", "GB", "TB"];
+	var sindex = 0;
+	while(size > 1024) {
+		sindex+=1;
+		size/=1024;
+	}
+
+	newRow.insertCell(0).innerHTML = "<a href="+url+" download>"+url.split("/").pop()+"</a>";
+	newRow.insertCell(1).innerHTML = pRound(size) + " " + suffixes[sindex];
+}
+
+function pRound(num) {
+	// pretty round
+	mult = Math.ceil(Math.pow(10,3-String(num).split(".",1)[0].length));
+	return Math.round(num*mult)/mult;
+}
+
+// thoughts and prayers for everyone working in javascript